How to troubleshoot the sound system in my Audi A4?

I recently purchased a used Audi A4 and have been having trouble with the sound system. I can't seem to get any sound to come out of the speakers, even though the radio and CD player are working fine. How can I diagnose and fix this issue?

First, check the fuse for the sound system. If it's blown, replace it and see if that solves the problem. If not, it could be a wiring issue. You may need to take it to a mechanic or car audio specialist for further diagnosis and repairs.

One possible problem could be a faulty amplifier. Try disconnecting and reconnecting the amplifier to see if that restores the sound. If not, it may need to be replaced.